Mold.



P. V. KORNEFFBL & O. B. HIITT.

MOLD. I

APPLICATION FILED APE.27, 1911.

1,050,145, Patented Jan.14,1913.

2 SHEETS-'SHEET 2.

Witnesses Invent Attorneys UNITED STATES PATENT QFFICE.

PAUL V. KORNEFFEL AND OTTO E. I-IIITT, OF LEWISTON, MAINE.

MOLD.

Specification of Letters Patent. I

Patented Jan. 14, 1913.

Application filed April 27, 1911. Serial No. 623,776.

T all whom it may concern:

Be it known that we, PAUL V. KoRNnrrEL and Orro E. I-Irrrr, citizens ofthe United States, residing at Lewiston, in the county of Androscoggin,State of Maine, have invented a new and useful Mold, (Case 13,) of whichthe following is a specification.

The device forming the subject matter of this application, is a moldingstructure, adapted to be employed for the fashioning of monolithiccovers for the body portions of receptacles. The device herein disclosedis adapted to be used in connection with a molding structure for thefashioning of the body portions of such receptacles, the device for thefashioning of the body portions of the receptacles, constitutin thesubject matter of my co-pending appllcation Serial No. 623,425.

It is the object of this invention to provide a mold, consisting of aseries of superposed frames which may be assembled and disconnectedreadily, and to provide novel means for holding the core properly spacedwith respect to the mold.

WVith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without 35 departing from the spirit of the invention.

In the accompanying drawings,Figure 1 is a top plan, parts being brokenaway;

Fig. 2 is a longitudinal section of the device depicted in Fig. 1; Fig.3 is a transverse 40 section on the line AB of Fig. 1, parts appearingin elevation; Fig. 4 is a transverse section, fragmental in nature, andtaken upon the line CD of Fig. 1; and Fig. 5 is a fragmental transversesection of the cover which the device herein disclosed, is adapted tofashion.

The structure forming the subject matter of this application, consistsof two primary elements, one being designated generally as the mold, andthe other being designated generally as the core.

The mold, in its turn, is a composite structure, and comprises a base 1,which may be supported upon transverse cleats 2, a lower frame 3 restingupon the base 1, an intermediate frame 4 resting upon the lower frame 3,and an upper frame 5, resting upon the intermediate frame 4. Thesedetails will be best understood from an examination of Fig. 3, and,referring to this figure, it will be seen that a core 6 is heldsuspended above, and within the contour of, the centrally depressed moldformed by the cooperating frames 3, 4 and 5.

Passing now to a detailed description of the several frames which go tomake up the mold, it will be seen that the lower frame 3 comprises sides7 and ends 8, mitered together, as shown at 11. The frame formingmembers 7 and 8, upon their inner edges, are beveled off as shown at 9,toward the central portion of the base 1.

The invention further includes a cover 10, preferably of metal, thiscover 10 extending across the central portion of the base 1, and thenceupwardly, and outwardly, over the beveled faces 9 of the frame 3, to theperiphery of the mold.

The intermediate frame 4 comprises sides 12 and ends 14, miteredtogether as shown at 15, the frame 4 being surrounded trans versely, bya metallic covering 16. The frame 4 is considerably narrower than theframe 3, and the inner edge of the frame 4 may be headed in any desiredform.

The upper frame 5 comprises sides 17 and ends 18, mitered together asbefore. This frame 5 preferably is fashioned from metallic bars. Theframe 5 is considerably wider than the frame 4, and slightly narrowerthan the frame 3. One edge of the covering 16 of the frame 4 is boundbeneath the frame 5, the other edge of the covering 16 being bound bythe frame 4, against the covering 10. In order to hold these severalframes together, and upon the base 1, securing elements 19, preferablytaking the form of bolts, are extended upwardly through the base 1, andthrough the frames 5, 4 and 3, the bolts passing likewise through thecoverings 16 and 10. The bolts 19, at their lower ends, are threaded toreceive wing nuts 21, washers 20 being interposed between the wing nutsand the base 1. In the upper ends of the bolts 19 there are openingsadapted to receive pins 22 which, in their turn, engage the upper faceof the upper frame 5. The core 6 bulges downwardly in its centralportion, as denoted by the numeral 40. The core 6 preferably extendsdownwardly within the frames 5 and 4, to a point adjacent the plane ofthe upper face of the lower frame 3, as Figs. 2 and 3 will makemanifest. The core 6 is spaced peripherally from the several frames. Inorder to maintain the core 6 properly positioned, and to secureuniformity in the relations between the core and the mold, a supportingdevice for the core is provided. This supporting device preferablycomprises a series of arched bars 23, extended transversely of thestructure, the bars 23 ordinarily being angle members. The ends of thebars 23 engage the outer surface of the mold, so that the core 6 will beat all times properly centered. In the ends of the bars there areopenings adapted to receive eyes 24, formed in the ends of screws 25,the screws 25 being thus pivotally connected with the bars 23, so thatthe threaded ends of the screws may be swung between fingers 26, formedin the outer ends of cleats 27, secured to the lower face of the base 1.Upon the threaded ends of the screws 25, are mounted lever nuts 28,adapted to engage beneath the fingers 26.

The core (3 is a composite structure, and comprises a body 29,surrounded by a metallic covering 30, the edges 31 of which are boundbeneath one flange of each of the angle members 23, securing elements 32being extended through these flanges of the angle members, and throughthe edges 31 of the covering 30, into engagement with the body 29 of thecore 6. Projecting inwardly from the ends of the bars 23 are feet 33,adapted to engage the upper face of the top frame 5. The cooperationbetween the feet 33 and the upper frame 5, serve to space the core 6properly from the bottom of the mold.

It will be seen, in practical operation, that. through theinstrumentality of the bolts 19, the several frames 3, 41 and 5,together with the coverings 10 and 16, may be readily assembled, to formthe mold portion of the device. The bars 23, with the core 6 securedthereto, may be placed upon the mold, the feet 33 resting upon the topof the mold, and the ends of the bars 23 engaging the periphery of themold. Thus, the core 6 will be maintained in proper position, bothvertically and horizontally. The screws 25 may be swung between thefingers 26, and when the lever nuts 28 are rotated, the core 6 will bebound rigidly in place upon the mold. The concrete will fill the spacebetween the core and the mold, and when the concrete is struck off,along the upper face of the upper frame 5, the finished productwill havethe general appearance depicted in Fig. 5. Referring, then, to Fig. 5,it will be seen that the covering 10 will serve to fashion the bulgedtop 34; of the cover, the intermediate frame 4 forming the molded head35 at the periphery of the cover, the top frame 5 serving to fashion theshoulder 36 in the cover, the striking off of the material, flush withthe upper frame 5 serving to form the face 37 of the cover, and thedownwardly bulging portion 4C0 of the core 6 serving to form theconcavity 38 in the lower face of the cover.

Having thus described the invention, what is claimed is A device of theclass described comprising a mold,centrally depressed; arched barsextended transverselyof the mold, and having, adjacent their ends,inwardly projecting feet adapted to rest upon the top of the mold, theends of the bars engaging the outer faces of the mold; a core carried bythe bars, within the contour of the mold; securing members pivoted tothe ends of the bars; cleats secured to the mold, and adapted to receivethe securing members; and elements upon the securing members, adapted toengage the cleats, and to draw the feet against the mold.

In testimony that we claim the foregoing as our own, we have heretoafliXed our signatures in the presence of two witnesses.

PAUL V. KORNEFFEL. OTTO E. HIITT. Witnesses Gnome PATTLE, Janus E.SCOTT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

